package com.itheima.utils;


import com.aliyun.oss.ClientBuilderConfiguration;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.common.auth.CredentialsProviderFactory;
import com.aliyun.oss.common.auth.EnvironmentVariableCredentialsProvider;
import com.aliyun.oss.common.comm.SignVersion;
import com.itheima.queryParams.AliyunOSSProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.io.ByteArrayInputStream;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.UUID;

@Component
public class AliyunOSSOperators {
    @Autowired
    private AliyunOSSProperties aliyunOSSProperties;
    public String upload(byte[] content,String fileNmae) throws Exception {
        String endpoint = aliyunOSSProperties.getEndpoint();
        String bucketName = aliyunOSSProperties.getBucketName();
        String region = aliyunOSSProperties.getRegion();


        // 从环境变量中获取访问凭证。运行本代码示例之前，请先配置环境变量
        EnvironmentVariableCredentialsProvider credentialsProvider =
                CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();

        // 创建OSSClient实例。
        // 当OSSClient实例不再使用时，调用shutdown方法以释放资源。
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        // 显式声明使用 V4 签名算法
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(endpoint)
                .credentialsProvider(credentialsProvider)
                .region(region)
                .build();
            // 2. 上传文件
        String path = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
        String newFileName = UUID.randomUUID().toString() + fileNmae.substring(fileNmae.lastIndexOf("."));
        String objectName = path+ "/" + newFileName;
        ossClient.putObject(bucketName, objectName, new ByteArrayInputStream(content));

        //https://chenxinjava.oss-cn-hangzhou.aliyuncs.com/文件的新名字
        String url = endpoint.split("//")[0] + "//" + bucketName + "." + endpoint.split("//")[1] +"/"+ objectName;
        return url;
    }
}
